Underground crane



FIG. 1 is a perspective view of the underground crane showing our new design with the crane assembly in operable condition;

FIG. 2 is a side elevational view thereof with the crane assembly in collapsed condition;

FIG. 3 is a rear elevational view of FIG. 2.

FIG. 4 is a top plan view of FIG. 2.

FIG. 5 is a front elevational view of FIG. 2.

The side opposite to that shown in FIG. 2 is substantially a mirror image thereof. 

The ornamental design for the underground crane, as shown and described. 